During this mission the player will assume the role of General Javier Diego as he attempts to keep the U.S. Army from crossing the border and destroying his forces. After the cutscene, the player will have to survive several waves of enemy attacks from across the river, accompanied by his soldiers José and Franco.

After they have eliminated most of the attacking enemies, the player will witness a cutscene showing Diego’s artillery being bombarded by enemy cannons. Assuming control of their character again, Diego will have to fire flares from his Martillo del Dios to mark spots among the enemy positions for friendly cannon strikes while dodging incoming shells. Two icons will appear at the top of the screen; the one on the left (green) will show how many of Diego’s cannons are left, and the one on the right (red) will indicate how many American artillery pieces remain. With the gun equipped, load a flare with R2, aim at an enemy cannon, then press R1 to shoot a flare. The player must ensure that they have at least one of Diego’s cannons intact, or they will fail the mission.

After several of the enemy cannons are destroyed, more U.S. soldiers will begin attacking. After fighting off enough soldiers, the player will then have to guard a team of demolition experts as they set charges at the base of the bridge in order to destroy it and stop the enemy advance. Be sure to watch the two men’s health bars, as if they are both killed the mission will be failed.

Once all the charges have been set, a cutscene will show the bridge blowing up, and Diego’s men bringing up a small group of prisoners. One of them is Nate Harlow’s old partner, Griffon, who will strike a deal with the renegade General to spare his life in exchange for a share in the claim at Bear Mountain. The mission will then be completed. In the final cutscene, Sheriff Bartlett lets Red out of his cell and says the charges are dropped, with the assumption that Red will take care of General Diego.